CVE-2026-83063

Received Received - Intake

Oracle Internet Directory LDAP Server Authentication Bypass

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Oracle

Description

Vulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows high privileged attacker with network access via LDAP to compromise Oracle Internet Directory. Successful attacks of this vulnerability can result in takeover of Oracle Internet Directory. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

CVSS Scores

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Meta Information

Published

2026-09-15

Last Modified

2026-09-15

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83063

EUVD

EUVD-2026-79391

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	internet_directory	12.2.1.4.0
oracle	internet_directory	14.1.2.1.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Internet Directory, part of Oracle Fusion Middleware. It affects versions 12.2.1.4.0 and 14.1.2.1.0. An attacker with high privileges and network access via LDAP can exploit it to take over the Oracle Internet Directory service.

Detection Guidance

Detection of this vulnerability requires checking for Oracle Internet Directory versions 12.2.1.4.0 or 14.1.2.1.0 and verifying if LDAP access is enabled. Use commands like 'ldapsearch -h <target> -p 389 -x -b "" -s base' to query the LDAP server. Ensure only authorized users have high privileges.

Impact Analysis

If exploited, this vulnerability allows an attacker to fully compromise Oracle Internet Directory, leading to potential loss of confidentiality, integrity, and availability of the system. This could result in unauthorized access, data breaches, or service disruption.

Compliance Impact

This vulnerability allows high privileged attackers to compromise Oracle Internet Directory, potentially leading to unauthorized access, modification, or deletion of sensitive data. This could violate GDPR's data protection requirements and HIPAA's safeguards for protected health information, depending on the data processed.

Mitigation Strategies

Apply the latest security patches from Oracle for affected versions 12.2.1.4.0 and 14.1.2.1.0. Restrict network access to LDAP ports and limit privileges for LDAP users to reduce attack surface.

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